re PR fortran/39229 (No warning of truncated lines if a continuation line follows)

2009-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/39229
	* scanner.c (next_char): Fix typo in comment.
	(gfc_get_char_literal): Warn if truncate flag is set for both fixed and
	free form source, adjusting error locus as needed.
	* parse.c (next_fixed): Clear the truncate flag.
	(next_statement): Remove truncate warning.

From-SVN: r151258

gcc/fortran/ChangeLog

+2009-08-31  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/39229
+	* scanner.c (next_char): Fix typo in comment.
+	(gfc_get_char_literal): Warn if truncate flag is set for both fixed and
+	free form source, adjusting error locus as needed.
+	* parse.c (next_fixed): Clear the truncate flag.
+	(next_statement): Remove truncate warning.
+
 2009-08-31  Janus Weil  <janus@gcc.gnu.org>
 	    Paul Thomas  <pault@gcc.gnu.org>
 
@@ -99,7 +108,7 @@
 2009-08-22  Bud Davis <bdavis9659@sbcglobal.net>
 
 	PR fortran/28093
-	* io.c: reverted previous patch
+	* io.c: reverted previous patch.
 
 2009-08-25  Janne Blomqvist  <jb@gcc.gnu.org>
 

gcc/fortran/parse.c

@@ -849,6 +849,8 @@ next_fixed (void)
 blank_line:
   if (digit_flag)
     gfc_warning ("Ignoring statement label in empty statement at %C");
+    
+  gfc_current_locus.lb->truncated = 0;
   gfc_advance_line ();
   return ST_NONE;
 }
@@ -862,6 +864,7 @@ next_statement (void)
 {
   gfc_statement st;
   locus old_locus;
+
   gfc_new_block = NULL;
 
   gfc_current_ns->old_cl_list = gfc_current_ns->cl_list;
@@ -871,14 +874,7 @@ next_statement (void)
       gfc_buffer_error (1);
 
       if (gfc_at_eol ())
-	{
-	  if ((gfc_option.warn_line_truncation || gfc_current_form == FORM_FREE)
-	      && gfc_current_locus.lb
-	      && gfc_current_locus.lb->truncated)
-	    gfc_warning_now ("Line truncated at %C");
-
 	gfc_advance_line ();
-	}
 
       gfc_skip_comments ();
 

gcc/fortran/scanner.c

@@ -614,7 +614,7 @@ next_char (void)
 
 /* Skip a comment.  When we come here the parse pointer is positioned
    immediately after the comment character.  If we ever implement
-   compiler directives withing comments, here is where we parse the
+   compiler directives within comments, here is where we parse the
    directive.  */
 
 static void
@@ -1080,6 +1080,17 @@ restart:
 	    }
 	}
 
+      /* Check to see if the continuation line was truncated.  */
+      if (gfc_option.warn_line_truncation && gfc_current_locus.lb != NULL
+	  && gfc_current_locus.lb->truncated)
+	{
+	  int maxlen = gfc_option.free_line_length;
+	  gfc_current_locus.lb->truncated = 0;
+	  gfc_current_locus.nextc += maxlen;
+	  gfc_warning_now ("Line truncated at %L", &gfc_current_locus);
+	  gfc_current_locus.nextc -= maxlen;
+	}
+
       /* Now find where it continues. First eat any comment lines.  */
       openmp_cond_flag = skip_free_comments ();
 
@@ -1158,6 +1169,14 @@ restart:
       if (c != '\n')
 	goto done;
 
+      /* Check to see if the continuation line was truncated.  */
+      if (gfc_option.warn_line_truncation && gfc_current_locus.lb != NULL
+	  && gfc_current_locus.lb->truncated)
+	{
+	  gfc_current_locus.lb->truncated = 0;
+	  gfc_warning_now ("Line truncated at %L", &gfc_current_locus);
+	}
+
       prev_openmp_flag = openmp_flag;
       continue_flag = 1;
       old_loc = gfc_current_locus;